CN102291592A - Method for collecting self-checking failure information of television by using external storage medium - Google Patents
Method for collecting self-checking failure information of television by using external storage medium Download PDFInfo
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- CN102291592A CN102291592A CN2011102145849A CN201110214584A CN102291592A CN 102291592 A CN102291592 A CN 102291592A CN 2011102145849 A CN2011102145849 A CN 2011102145849A CN 201110214584 A CN201110214584 A CN 201110214584A CN 102291592 A CN102291592 A CN 102291592A
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Abstract
The invention relates to a method for collecting self-checking failure information of a television by using an external storage medium. The method is characterized by comprising the following steps of: firstly, defining a structure on system software of a television processor; secondly, reading detection information in each integrated circuit (IC) register of the television system by the system software through a bus at an interval of time t1, and simultaneously, processing and analyzing other data required to be detected and collected by the processor at an interval of time t2, and temporarily storing the detection information and the data in variables of the structure; and finally, when an external storage medium is detected to be inserted into the television system, writing the detection information in the variables into the external storage medium by the system software. By using the method, the pluggable external storage medium is used for collecting self failure detection analytical data, the acquired data content is more detailed compared with that of the conventional method, and the acquisition way is more convenient.
Description
Technical field
The present invention relates to a kind of method of collecting the self-detection failure information of television set with exterior storage medium.
Background technology
Existing television fault detects generally to have in the common method by perusal, the sense of hearing judges, takes apart bonnet measurement circuit, serially printing information, specific purpose tool connection I2C, Ethernet interface connection mainboard etc.Can only check out common simple fault for the method that detects by an unaided eye, the sense of hearing is judged; Can not check the fault that software is relevant for the method for taking the bonnet measurement circuit apart; Connect method such as mainboard and need the professional and technical personnel for connect I2C, Ethernet interface by serially printing information, specific purpose tool, and consider, then need the personnel after sale in each area that the tool of special debugging usefulness all will be arranged from cost; Can not fast, conveniently, effectively collect fault message.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of method of collecting the self-detection failure information of television set with exterior storage medium.
The present invention adopts following scheme to realize: a kind of method of collecting the self-detection failure information of television set with exterior storage medium, it is characterized in that: at first on system's software of television processor, define a structure, system's software is by the detection information of bus in time t1 reads each IC register of this system for TV set then, simultaneously processor needs to detect the data of collection every time t2 Treatment Analysis except that described detection information, and should detection information and data are temporary is put in the variable of described structure, ought detect exterior storage medium at last and insert system for TV set, described system software then writes this exterior storage medium with the detection information in the variable.
In an embodiment of the present invention, the described information that reads in each IC register of this system for TV set is to adopt following scheme to realize: when system's software carries out initialization by bus mode to each IC, the register that needs each IC of read-write, if in the read-write process, make mistakes, then read again, through the not success of predefined limited number of times, then that the ID of this IC and read-write is wrong deposit data is in the structure variable.Each IC initialization preprocessor reads the important register value of each IC every time t1 by bus, and is also that these values are also temporary in the structure variable simultaneously.
In an embodiment of the present invention, described IC can comprise NAND Flash, Nor Flash, digital code stream decoding chip, tuner, digital power amplifier.Here be embodiment with NAND Flash, when the block of this NAND Flash has bad piece, will be identified into bad block, and generate tabulation; On the good block of this bad block list storage in this NAND Flash, systems soft ware is by reading this bad block list information, then with these information temporary storages in the variable of described structure.
In an embodiment of the present invention, described IC is tuner IC, processor can obtain after reading and writing this tuner IC and analyzing and processing: the number of times of lock under each channel (can repeatedly read capable field synchronization information when searching platform and write down lock locking number of times after having write each frequency to tuner), the channel number, channel, the channel standard that search out, these information can be used as judgement and have or not the leakage platform, and whether the signal of channel is the foundation that can support; Whether if the DTV Digital Television, then detection information can further include: signal strength signal intensity, signal quality, the error rate, be the important information that nonstandard signal and other code stream analyzing come out.
Synchronization loss mistake when in an embodiment of the present invention, the described processor data that need to detect collection every time t2 Treatment Analysis except that described detection information comprise the code stream of resolving the DVB standard, the sync byte mistake, the PAT(Program Association Table) mistake, the continuous counter mistake, the PMT(Program Map Table) mistake, PID(identity code transmission package) mistake, error of transmission, the CRC(cyclic redundancy check (CRC) code) mistake, PCR (program clock reference) is mistake at interval, PCR shakes mistake, PTS(shows timestamp) mistake, the CAT(CAT Conditional Access Table) mistake, the NIT(network information table) mistake, the SI(business information) repetition rate mistake, the buffer mistake, non-appointment PID mistake, SDT(service describing table) mistake, the EIT(Event Information Table) mistake, the RST(Running Status Table) mistake, the TDT(TDT Time and Date Table) mistake, empty buffer device mistake and data delay mistake.
In an embodiment of the present invention, the detection information of described synchronization loss mistake is: be consecutively detected 5 normal synchronized and be considered as synchronously, being consecutively detected incorrect more than 2 then is the synchronization loss mistake synchronously.
In an embodiment of the present invention, the detection information of described sync byte mistake is: when the value of sync byte is not that 0x47 is then for thinking the sync byte mistake.
In an embodiment of the present invention, described synchronous Program Association Table (PAT) error detection information comprises: it is not that 0x00, PID are that scrambling control section in packet header of 0x0000 is not 0 that the PID of sign PAT not have at least 0.5 s occurs once, PID is 0x0000 table-id.
In an embodiment of the present invention, system's software detect Menu key by long by, enter then whether scanning is outside a state that inserts storage medium.
The present invention has the following advantages: 1, with pluggable exterior storage medium as memory carrier, all can be realized faults itself check and analysis storage to this memory carrier with the television set of pluggable exterior storage medium interface.In case 2 storage have arrived this memory carrier, just can be easy to these data are copied out issue the person skilled analysis.3, this technology develops on USB flash disk read-write technical foundation, and therefore technical realization is not difficult.4, this method does not need to rely on professional tool, does not need to take apart the television set metric data, and the personnel that collect data also not necessarily want the professional, even can be that user self just can accomplish.
Description of drawings
Fig. 1 is an embodiment of the invention fault detect schematic flow sheet.
Fig. 2 is that the embodiment of the invention is collected the storage schematic flow sheet.
Embodiment
Present embodiment collect the method for the self-detection failure information of television set with exterior storage medium, it is characterized in that: at first on system's software of television processor, define a structure, system's software is by the detection information of bus in time t1 reads each IC register of this system for TV set then, other need detect the data of collection to processor every time t2 Treatment Analysis simultaneously, and should detection information and data are temporary is put in the variable of described structure, this structure variable can upgrade nearest detection information and data, so structure variable number can not increase always, ought detect exterior storage medium at last and insert system for TV set, described system software then writes this exterior storage medium with the detection information in the variable.Structure is exactly a structure that can comprise different types of data, and it is a kind of data type that can define itself.
As shown in Figure 1, when television startup, need carry out initialization operation to each IC, if which IC initialization is unsuccessful, fill perhaps and again this equipment is carried out initialization, system's software generally is to carry out initialized by the mode of bus to each IC, therefore, we can utilize when system's software carries out initialization by the mode of bus to each IC, need the register of each IC of read-write, realize reading described register, if in I2C read-write process, make mistakes, then read again, through the not success of predefined limited number of times, then that the ID of this IC and read-write is wrong deposit data is in the structure variable.Each IC initialization preprocessor reads the important register value of each IC every time t1 by bus, and is also that these values are also temporary in the structure variable simultaneously.
Described detection information comprises the test result of each IC of system, below we simply describe with several examples:
With NAND Flash nonvolatile flash memory is example, when the block of this NAND Flash has bad piece, will be identified into bad block, and generates tabulation; On the good block of the bad piece list storage of this bad block in this NAND Flash, systems soft ware is by reading this bad block list information, then with these information temporary storages in the variable of described structure.
Processor can obtain after reading and writing tuner IC and analyzing and processing: the number of times of lock under each channel (can repeatedly read capable field synchronization information when searching platform and write down lock locking number of times after having write each frequency to tuner), the channel number, channel, the channel standard that search out, these information can be used as judgement and have or not the leakage platform, and whether the signal of channel is the foundation that can support; Whether if the DTV Digital Television, then detection information can further include: signal strength signal intensity, signal quality, the error rate, be the important information that nonstandard signal and other code stream analyzing come out.
Synchronization loss mistake when in an embodiment of the present invention, the described processor data that need to detect collection every time t2 Treatment Analysis except that described detection information comprise the code stream of resolving the DVB standard, the sync byte mistake, the PAT mistake, the continuous counter mistake, the PMT mistake, the PID mistake, error of transmission, crc error, PCR is mistake at interval, PCR shakes mistake, the PTS mistake, the CAT mistake, the NIT mistake, SI repetition rate mistake, the buffer mistake, non-appointment PID mistake, the SDT mistake, the EIT mistake, the RST mistake, the TDT mistake, empty buffer device mistake and data delay mistake.The data message of these detections can be kept in the structure variable of above-mentioned predefined, so that analyze for the professional after need storing exterior storage medium into.In addition, above-mentioned data only are the data when resolving DVB standard code stream, the data that system produces in the time of can also resolving the code stream of other standards such as ISDB, ASTC.
Above-mentioned error message is all known their effects in system to those skilled in the art, and at this, we just simply describe three information:
Timing error is a most important index of weighing the transport stream quality, only after having obtained synchronously, could monitor other parameter.Detection criteria: be consecutively detected 5 normal synchronized and be considered as synchronously, being consecutively detected incorrect more than 2 then is the synchronization loss mistake synchronously.Drain transmission desynchronizes, and indicates to understand some loss of data in the transmission course, directly influences the quality of decoded picture.
The standard value of sync byte is 0x47, when the value of sync byte is other numerical value, thinks the sync byte mistake.The sync byte mistake shows that mistake appears in partial data in transmission course, occurs mosaic in the time of may causing receiving, and causes decoder can not separate signal when serious.
Pat table is used for indicating current program and in the position of data flow in the DVB standard.The PID of sign Program Association Table PAT is 0x0000, if PAT loses or be encrypted, decoder can't search respective program; If PAT is overtime, the decoder functions time lengthening.The PAT mistake comprises: the PID of sign PAT not at least 0.5 s occurs once (requiring pat table lattice information 500m with interior transmission once); PID be 0x0000 table-id not for 0x00(require to carry in the TS bag of pat table lattice the value of table-id must wait translate 0x00); Be not the 0(scrambling if PID is the scrambling control section in packet header of 0x0000, decoding end can't parse PAT information).
Please refer to Fig. 2, in the present embodiment be by the system software detect Menu key whether by long by, and then carry out the scanning whether exterior storage medium is inserted.Concrete step is as follows: 1, button detects: if detect Menu key by long by 5 seconds, enter then whether scanning is outside a state that inserts storage medium.
2, whether inquiry has the insertion storage medium: if having, be made as this medium read-write.If not then eject the interface that the prompting user inserts storage medium.
3, collect fault message to this medium: this medium is made as read-write after, wait for whether step shown in Figure 2 is finished, write this medium if finish the fault message of representing with the structure variable (the structure variable can be put in the txt text) that just begins collecting.
4, after above step process is finished, eject the interface that information stores is finished, at this moment can extract this medium, then the information of preserving in this medium is taken off analysis.
What deserves to be mentioned is that method of the present invention not only can be applied in the television set, it can substitute traditional fault detect mode.Can also utilize difference in functionality and the different application field of the method according to actual product, in structure, dosed the variable name that will detect, and dose at the function that will detect target, reaching more expanded application demands, or even the other products except that tv product.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. method of collecting the self-detection failure information of television set with exterior storage medium, it is characterized in that: at first on system's software of television processor, define a structure, system's software is by the detection information of bus in time t1 reads each IC register of this system for TV set then, simultaneously processor needs to detect the data of collection every time t2 Treatment Analysis except that described detection information, and should detection information and data are temporary is put in the variable of described structure, ought detect exterior storage medium at last and insert system for TV set, described system software then writes this exterior storage medium with the detection information in the variable.
2. according to claim 1ly collect the method for the self-detection failure information of television set with exterior storage medium, it is characterized in that: described structure variable number immobilizes, and is to adopt to upgrade nearest detection information and the mode of data is stored.
3. method of collecting the self-detection failure information of television set with exterior storage medium according to claim 1, it is characterized in that, the described information that reads in each IC register of this system for TV set is to adopt following scheme to realize: when system's software carries out initialization by bus mode to each IC, the register that needs each IC of read-write, if in the read-write process, make mistakes, then read again, through the not success of predefined limited number of times, then that the ID of this IC and read-write is wrong deposit data is in the structure variable, each IC initialization preprocessor reads the important register value of each IC every time t1 by bus, and is also that these values are also temporary in the structure variable simultaneously.
4. method of collecting the self-detection failure information of television set with exterior storage medium according to claim 1, it is characterized in that: described IC is NAND Flash, when the block of this NAND Flash has bad piece, will be identified into bad block, and be generated tabulation; On the good block of this bad block list storage in this NAND Flash, systems soft ware is by reading this bad block list information, then with these information temporary storages in the variable of described structure.
5. method of collecting the self-detection failure information of television set with exterior storage medium according to claim 1, it is characterized in that: described processor comprises every the data that time t2 Treatment Analysis needs to detect collection except that above-mentioned detection information: the number of times of lock, the channel number that searches out, channel, channel standard under each channel, these information can have or not the leakage platform as judgement, and whether the signal of channel is the foundation that can support; If the DTV Digital Television then also further comprises: signal strength signal intensity, signal quality, the error rate, whether be the important information that nonstandard signal and other code stream analyzing come out.
6. according to claim 1ly collect the method for the self-detection failure information of television set, it is characterized in that: the synchronization loss mistake when described processor needs to detect collection every time t2 Treatment Analysis except that described detection information data comprise the code stream of resolving the DVB standard with exterior storage medium, the sync byte mistake, the PAT mistake, the continuous counter mistake, the PMT mistake, the PID mistake, error of transmission, crc error, PCR is mistake at interval, PCR shakes mistake, the PTS mistake, the CAT mistake, the NIT mistake, SI repetition rate mistake, the buffer mistake, non-appointment PID mistake, the SDT mistake, the EIT mistake, the RST mistake, the TDT mistake, empty buffer device mistake and data delay mistake.
7. method of collecting the self-detection failure information of television set with exterior storage medium according to claim 5, it is characterized in that: the detection information of described synchronization loss mistake is: be consecutively detected 5 normal synchronized and be considered as synchronously, being consecutively detected incorrect more than 2 then is the synchronization loss mistake synchronously.
8. according to claim 5ly collect the method for the self-detection failure information of television set with exterior storage medium, it is characterized in that: described sync byte mistake is: when the value of sync byte is not that 0x47 is then for thinking the sync byte mistake.
9. according to claim 5ly collect the method for the self-detection failure information of television set with exterior storage medium, it is characterized in that: described synchronous Program Association Table (PAT) mistake comprises: it is not that 0x00, PID are that scrambling control section in packet header of 0x0000 is not 0 that the PID of sign PAT not have at least 0.5 s occurs once, PID is 0x0000 table-id.
10. according to claim 1ly collect the method for the self-detection failure information of television set, it is characterized in that with exterior storage medium: system's software detect Menu key by long by, enter then whether scanning is outside a state that inserts storage medium.
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